Sharpening device.



R. W. PERRY.

SHARPENING DEVICE.

APPLICATION FILED JUNE 4.1917.

Pzitented Jan. 8, 1918.

/N\/E/\/TUR f, W c? are rar orrron.

REUBEN W. PERRY, 0F SPENCER, MASSACHUSETTS.

SHARPENING DEVICE.

To all whom it may concern:

Be it known that I, REUBEN W. PERRY, a citizen of the United States, residing at Spencer, in the county of Worcester and State of Massachusetts, have invented new and useful Improvements in Sharpening Devices, of which the following is a specification.

One object of this invention is to provide, as a member of a sharpening device, a bed adapted to rest on a table or other support, and provided with means for guiding'a manually movable abrasive body or sharpener, such as a stick of solidified agglutinated car'- borundum or a stick of natural stone, in a predetermined path, and with means for supporting a blade having beveled edge-forming portions, with either of said edge-forming portions in the path of movement of the acting face of the sharpener, to the end that an unskilled operator may maintain and preserve theproper bevel of said faces in sharpening the blade.

Another object of the invention is to enable said bed to hold a scissors or shear blade with its edge face in the path of movement of the acting face of the sharpener, so that the bed may be used either as a member of a knife-sharpener or of a scissors-sharpener.

To these and other related ends the invention consists in the improvements which I will now proceed to describe and claim.

Of the accompanying drawings forming a part of this specification,

Figure 1 isa perspective view of a bed constituting a member of a sharpening device embodying the invention.

Fig. 2 is a perspective view of a sharpener constituting another member of the sharpening device.

Fig. 3 is an edge View of the bed and a transverse section of a knife blade supported thereby, another blade being shown by dotted lines.

Fig. 1 is a view similar to Fi 3, illustrating the function of the bed 1n holding a scissors blade.

Figs. 5 and 6 are edge views illustrating a modification.

The same reference characters indicate the same parts in all of the figures.

The bed member of my improved sharpening device is'preferably of the general form represented by Fig. 1, and may be made of wood or other suitable material, the bed be- Speciflcation of Letters Patent.

Patented Jan. 8, 1918.

Application filed June 4, 1917. Serial No. 172,596.

ing adapted to rest on a table or other support.

A part of the upper side of the bed constitutes a flat sharpener-guiding face 12, on which the flat acting face 13 of a sharpener 14 may be manually reciprocated. The bed 1s provided with two blade-supporting faces 15 and 16, each of which is inclined relatively to the guiding-face 12 and to the other supporting face. Said faces 15 and 16 meet to form an obtuse angle, which is preferably in or slightly below the plane of the sharpener-guiding face 12.

Each of the faces 15 and 16 is adapted to support a knife blade 17 having two beveled edge-forming portions 17*, with one of said portions substantially in the plane of the guiding-face 12 and in the path of the acting-face of the sharpener 14, as indicated by full and dotted lines in Fig. 3, the blade being first supported by one of the supporting faces, with one of its portions l7 uppermost, and then by the other supporting face, with its opposite portion 17 uppermost. The inclination of the supporting faces 15 and 16 relatively to the guiding face 12 in sures the preservation of the proper bevel of the blade portions 17 during the sharpening operation, and enables the blade to be accurately sharpened by an unskilled operator.

I prefer to provide means for confining the blade against displacement by the sharpener. As shown by Figs. 1 and 3, I have embodied the confining means in a corrugated plate 19 attached to one edge of the bed, the corrugations of said plate forming a plurality of sockets 20, and a stop member such as a pin 21, adapted to be inserted in either of said sockets and to bear against the back of the blade 17 resting on the face 16. The acting stroke of the sharpener 14 is usually in the direction indicated by the arrow in Fig. 8, so that the displacement of the blade by movement of the sharpener in the direction indicated, is prevented by the stop member 21. The blade resting on the face 15 is not liable to displacement in the direction indicated; hence in Figs. 1 and 1 I have shown blade-confining means adapted to cooperate only with a blade resting on the face 1.6. It is obvious, however, that additional blade-confining means may be pro vided as shown by Fig. 3, adapted to cotiperate with a blade resting on the face 15.

To enable the bed to hold a scissors or shear blade 22 with its edge face 22 in the path of the acting face of the sharpener 14, as indicated by Fig. 41, I make the bed in two separable sections 23 and 24;, the sec tion 23 being called the body section, and the section 2 1. the. movable section. The faces 12 and 15 are formed on the body section 28, and the face 16 is formed on the movable section 2 1. Said sections are provided respectively with clamping faces 25 and 26, Which are abutted together, as shown by Figs. 1 andS, when the bed is used to support a knife blade, and are separated, as shown by Fig. 1, to admit a scissors blade 22 between them, as shown by Fig. l. The said clamping faces are inclined and hold the relatively wide sides of the blade 22 correspondingly inclined, the edge face 22 being. in substantially the same plane as the sharpener guiding face 12.

I have provided clamping means for separably connecting the sections 23 and 2 4;, said means being preferably embodied in a bent rod composed of a longer arm 27 and shorter arm 28, and a neck 29 connecting said arms. The neck 29 is seated on the movable section 16 and the longer arm 27 extends through the sections 23 and 2 iand is screwthreaded at one end. and provided with a clamping nut 3Q seated on the body section 23, The shorter arm 28 extends through the section 24 and into, but not wholly through, the section 23, the function of said shorter arm being. to prevent the section 24 from turning on the longer arm 27 YVhen the nut 30, is turned outwardly it permits the separation of the clamping faces 25 and 26 and the interposition of a blade between them.

Figs. 5 and 6' show a modified form of bed adapted to confine a blade 17 in either of thetwo positions shown by said figures. In said modification the bed includes four sections 31, 32, 3 3 and 3&1, these sections being separably connected by means such as the bent rod composed of the arms 27 and 28, and the neck 29, and the clamping nut 30. The sections 32 and 33 are provided respectively with inclined blade-supporting faces 35 and 36, and the sections 31 and 34 are provided respectively with sharpener guiding faces 37 and 38, and with inclined clamping faces 39 and 40, adapted to cooperate with the faces 35 and 36 in clamping the blade 17 As shown by Fig. 2, the sharpener is provided with a hand-grip portion offset from its acting face, a part of said hand-grip portion being preferably utilized as a sharpener. In other words, the member shown by Fig. 2

includes two Sharpeners 14: and 14 Whichmay be alike in form, but of different grain ortexture, onebe ng coarser than the other, each sharpener having a flat acting face 13.

The two sharpeners are connected by a neck 11', preferably of wood, glued to the sharpeners It will now be seen that either of the sharpeners and the neck constitute a handle or hand-grip which is offset from the acting face of the other sharpener, so that the fingers of the operator are not liable to come in contact with a knife blade supported by the bed.

I claim: 7

1. A, bed constituting asharpening device mem e h ing a harpen -gui ing face, and two bladje supporting faces, each in clined relatively, to said guiding face and o th other supporting fa e, he relative arrangement of said faces being such that a blade may be supported by either inclined face with oneof its beveled edge-forming portions in the plane of said guiding face and in the pat o a sh rpe e guided hereby, f

2- A. bed con i u ing a h rpeningevic member having a sharpener-guiding face anda blade-supporting face inclined relatively to said guiding-face, the relative arrange llfint 0f said faces being such that a blade may besupported by said inclined face with one of its'beveled edge-forming portions in the plane of said guiding face.

8. A bed constituting a sharpening-device member having a sharpener-guiding face and a blade-supporting face inclined, relatively to said guiding-face, the relative arrangementof said faces being suchthat a blade may be supported by said inclined face with oneof its beveled edge-forming portions in. the plane of said guiding-face, S ed, being Pr v ded wit a s op me er adapted to bear'on the back of the blade and onfine th latter aga st d pl cement by he s rpener, I

4. A bed as specified by claimv 1, provided with a plurality of sockets and with a stop member engageable with either of said sockets, said stopv member and sockets consti- 110 tuting means for confining a blade agains displacement by. the sharpener. r

5. A bed as specified by claim 1, comprising a body section having the said sharpener-guidingface. and one of the said in- 115 clined faces, a movable section having the other inclined face, said sections being provided with opposed inclined clamping faces adapted to hold a shear or scissors blade with its edge face in the plane of said guiding 120 face, and clamping means for separably connecting said sections. v i

6. A bed as specified by claim 1, comprising a body section having the said sharpener-guiding face and one of the said in- 125 .clined faces, amovable section having the other inclined face, said sections being. provided with opposed inclined clamping faces adapted to hold a shear or scissors blade with its edge face in the plane of said guiding face, and a bent rod composed. of a longer into the body section and constitutes a steady and a shorter arm and a neck connecting pin, preventing turning movements of the said arms and seated on the movable section, movable section on the longer arm.

said longer arm extending through both sec- In testimony whereof I have alfixed my 5 tions and having a clamping nut seated on signature.

the body section, while the shorter arm extends through the movable section and partly REUBEN W. PERRY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

